A particle which is initially at rest at the origin, is subjected to an acceleration with x- and y-components as shown. After time t = 5 sec. , the particle has no acceleration.
What is the magnitude of average velocity of the particle between t = 0 and t = 4 seconds?
(A) 5/2√13 m/s
(B) 5/2√17 m/s
(C) 30 m/s
(D) None of these